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68368170 = 23513175303
BaseRepresentation
bin1000001001100…
…11011100101010
311202122110111110
410010303130222
5120000240140
610441211150
71460056053
oct404633452
9152573443
1068368170
1135657022
121aa90ab6
1311219b50
14911972a
156007380
hex413372a

68368170 has 32 divisors (see below), whose sum is σ = 176706432. Its totient is φ = 16828992.

The previous prime is 68368163. The next prime is 68368171. The reversal of 68368170 is 7186386.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (68368171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87262 + ... + 88041.

It is an arithmetic number, because the mean of its divisors is an integer number (5522076).

Almost surely, 268368170 is an apocalyptic number.

68368170 is an abundant number, since it is smaller than the sum of its proper divisors (108338262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68368170 is a wasteful number, since it uses less digits than its factorization.

68368170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175326.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 68368170 is about 8268.5047015769. The cubic root of 68368170 is about 408.9008234293.

The spelling of 68368170 in words is "sixty-eight million, three hundred sixty-eight thousand, one hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 175303 350606 525909 876515 1051818 1753030 2278939 2629545 4557878 5259090 6836817 11394695 13673634 22789390 34184085 68368170